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/*****************************************************************************
* Copyright (c) 2013 CEA LIST.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* CEA LIST - Initial API and implementation
*****************************************************************************/
package org.eclipse.papyrus.infra.services.markerlistener.providers;
import java.util.concurrent.CopyOnWriteArrayList;
import org.eclipse.papyrus.infra.core.resource.ModelSet;
import org.eclipse.papyrus.infra.services.markerlistener.Activator;
import org.eclipse.papyrus.infra.services.markerlistener.IMarkerEventListener;
import org.eclipse.papyrus.infra.services.markerlistener.IPapyrusMarker;
import org.eclipse.swt.widgets.Display;
/**
* This is the AbstractMarkerMonitor type. Enjoy.
*/
public abstract class AbstractMarkerMonitor
implements IMarkerMonitor {
private ModelSet modelSet;
private final CopyOnWriteArrayList<IMarkerEventListener> listeners = new CopyOnWriteArrayList<IMarkerEventListener>();
public AbstractMarkerMonitor() {
super();
}
public void initialize(ModelSet modelSet) {
this.modelSet = modelSet;
}
protected final ModelSet getModelSet() {
return modelSet;
}
public void dispose() {
listeners.clear();
modelSet = null;
}
protected void fireMarkerAdded(final IPapyrusMarker marker) {
if (this.listeners != null) {
Display.getDefault().syncExec(new Runnable() {
public void run() {
for (IMarkerEventListener listener : AbstractMarkerMonitor.this.listeners) {
try {
listener.notifyMarkerChange(marker.getEObject(), marker,
IMarkerEventListener.MARKER_ADDED);
} catch (Exception e) {
Activator.log.error(
"Uncaught exception in marker listener.", e);
}
}
}
});
}
}
protected void fireMarkerRemoved(final IPapyrusMarker marker) {
if (this.listeners != null) {
Display.getDefault().syncExec(new Runnable() {
public void run() {
for (IMarkerEventListener listener : AbstractMarkerMonitor.this.listeners) {
try {
listener.notifyMarkerChange(marker.getEObject(), marker,
IMarkerEventListener.MARKER_REMOVED);
} catch (Exception e) {
Activator.log.error(
"Uncaught exception in marker listener.", e);
}
}
}
});
}
}
public void addMarkerEventListener(IMarkerEventListener listener) {
listeners.addIfAbsent(listener);
}
public void removeMarkerEventListener(IMarkerEventListener listener) {
listeners.remove(listener);
}
}
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